CMIP5西北太平洋气候变率的模拟评估
投稿时间: 2014-05-08  最后修改时间: 2015-03-02  点此下载全文
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作者单位E-mail
智海 南京信息工程大学 大气科学学院, 江苏 南京 210044 Zhihai@nuist.edu.cn 
李恺霖 南京信息工程大学 大气科学学院, 江苏 南京 210044  
周顺武 南京信息工程大学 大气科学学院, 江苏 南京 210044  
基金项目:国家重点基础研究发展规划项目(2012CB955204);国家自然科学基金(41376039)
中文摘要:利用观测海温资料和CMIP5模式模拟结果分析西北太平洋(120°E~120°W,20~60°N)海表温度的气候态和年代际变化特征。结果表明,所选22个模式可以较好地模拟出西北太平洋海表温度的气候特征及其年际、年代际变化特征;模式模拟的海表温度总体标准偏差在黑潮延伸体区域最大;绝大多数模式能模拟出海表温度的第一EOF模态;西北太平洋海表温度具有较明显的年代际振荡现象,13/22的模式模拟的海表温度存在明显的年代际振荡,同时海表温度气候态的模拟偏差对其周期振荡模拟的影响较大,尤其在黑潮延伸体区域。
中文关键词:CMIP5  西北太平洋  气候变率  海表温度
 
CMIP5 assessment of climate variability over Northwest Pacific
Abstract:The observed SST data and CMIP5 data are used to analyze climate state and interdecadal variation of sea surface temperature(SST) over Northwest Pacific(20—60°N,120°E—120°W).Results indicate that the selected 22 models can simulate the climate state perfectly.More importantly,the selected models can simulate the annual and interdecadal variations of SST over Northwest Pacific.Total standard deviation of SST simulted by the models is the largest in Kuroshio extension region.The majority of models have an ability to simulate the first EOF mode of SST.The SST over Northwest Pacific has a significant interdecadal oscillation phenomenon.SSTs simulated by the 13/22 models have obvious interdecadal oscillations.Meanwhile,the simulated deviation of SST climate state has a great effect on the periodic oscillation of SST,especially in Kuroshio extension region.
keywords:CMIP5  Northwest Pacific  climate variability  SST(sea surface temperature)
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